Haute Living and Bertaud Belieu Wines kicked off the Hamptons season over the Memorial Day weekend at Southampton newcomer Nammos to a soundtrack courtesy of D.J. Cassidy. Nightlife vets Alex Julian (The Dream Hotel) and Eric Marx (formerly of EMM Group) are the men behind the Main Street Mediterranean eatery, which replaces Nellos Summertime. It was an auspicious start for the indoor-outdoor venue, with a spiffy young crowd moving to the beats of Cassidy, an in-demand spinner on the downtown party circuit.